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On 05/15/12 17:18, Will Pressly wrote:
<blockquote
cite="mid:CAEQEMgqawjnSXhtWybRVMdo6WLBWsTM51000eN+dLnM9k64frA@mail.gmail.com"
type="cite">
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Hi All,
<div><br>
</div>
<div>Is there a limit to the number of SRV records that NSD will
return, outside of the upper bound on packet size? I have a name
that has ~18 SRV records, and I only see the same four, always.
The packet size out on the wire is 260B, so I would expect we
could cram some more in there, and I am not sure why we are only
ever seeing the same five. </div>
<div><br>
</div>
<div>I wanted to ask before burning time on a source-code
code-dive. I am using nsd 3.2.5.</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Will Pressly</div>
<pre wrap="">
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</pre>
</blockquote>
Remember NSD doesn't rotate records in the same set (or in any
case). Also, you aren't going through a caching server are you?<br>
<br>
$ dig @192.168.2.231 _autodiscover._tcp.example.org srv<br>
...<br>
;; QUESTION SECTION:<br>
;_autodiscover._tcp.example.org. IN SRV<br>
<br>
;; ANSWER SECTION:<br>
_autodiscover._tcp.example.org. 30 IN SRV 1 100 25
mail.example.org.<br>
_autodiscover._tcp.example.org. 30 IN SRV 2 100 25
mail.example.org.<br>
_autodiscover._tcp.example.org. 30 IN SRV 3 100 25
mail.example.org.<br>
_autodiscover._tcp.example.org. 30 IN SRV 4 100 25
mail.example.org.<br>
_autodiscover._tcp.example.org. 30 IN SRV 5 100 25
mail.example.org.<br>
<br>
;; AUTHORITY SECTION:<br>
example.org. 360 IN NS ns1.example.org.<br>
//end snip<br>
<br>
That was just me quickly creating some entries on a test zone.
Often caching servers limit the number of RR's to whatever they feel
like (4 seems common). That's just my experience.<br>
<br>
-Bryan<br>
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